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Margarita [4]
4 years ago
9

I need a answer in simple terms on how to write things in y intercept form and use that to graph lines.

Mathematics
1 answer:
KiRa [710]4 years ago
7 0

Explanation:

y-intercept form is in the equation y=mx + b. m represents the slope and b represents the y-intercept.

To graph a line, you need at least two points. In y-intercept form, you have the y-intercept as a point. (0, b) Plot the value of b along the y- axis.

The slope, m, is in the form rise/run (if run is 1, it may not be written like that).

From the y-intercept point, count the number of squares given by your slope. Count the number of squares up/down for rise, and the number of square rightwards for run. If the slope is negative, count downwards.

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3 years ago
PLEASE HELP!!!!! Lines BC and EF meet at A. Set up an equation to find the value of x. Find the measurements of EAH and HAC
allsm [11]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Elaine wants to buy a couch for $899.99 if she pays $69.75 in sales tax what is the sales tax percent explain steps
tigry1 [53]

Answer:

the sales tax percent is therefore: 7.75%

Step-by-step explanation:

The sales tax she paid is $69.75, for a sofa whose sale price is $899.99.

Since $69.75 is the unknown (x) percent of $899.99, then we write this statement in math terms as:

69.75 = x * 899.99

solving for x we get:

x = 69.75 / 899.99

x = 0.0775

this is the decimal form of the percent, and in order to write it as percent, we multiply it by 100:

the sales tax percent is therefore: 7.75%

6 0
4 years ago
What is the sum of the geometric sequence -1, 6, -36, ....if there are 7 terms.
anzhelika [568]

Answer:

A) - 39,991

Step-by-step explanation:

Sum of geometric sequence formula is

S = a(\frac{1 -r^n}{1-r} )\\a=-1, r=6/(-1)=-6, n=7\\\\S = -1(\frac{1 -(-6)^7}{1-(-6)} )= -\frac{279937}{7} = -39991

5 0
3 years ago
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Which of following is the graph of y = -(x + 1)2 -3?
Len [333]

Answer:

See below.

Step-by-step explanation:

The graph of the quadratic equation is a parabola or u shaped graph. It has a vertex at (-1,-3) since h=-1 and k=-3 in the vertex form. It is also facing down since the leading coefficient is negative.

7 0
3 years ago
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